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secondary 4 | A Maths
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putin
Putin

secondary 4 chevron_right A Maths chevron_right Singapore

Can sb help me w 32? I keep getting -2sin^2x -4sinx+1 which is unfactorisable so idk how to get the a+ b thing. Tqtq

Date Posted: 3 weeks ago
Views: 14
Eric Nicholas K
Eric Nicholas K
3 weeks ago
In fact, the fact that the term 'a' is present means that the expression is very likely unfactorisable (if 'a' does not exist, then the expression would have been easily factorisable).

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Eric Nicholas K
Eric Nicholas K's answer
368 answers (Tutor Details)
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Essentially a completing the square thing.
putin
Putin
3 weeks ago
Oh I didn’t realise. Okay thank u